Question: Which is the schism for the significant event of the Russian Orthodox Church?
Paraphrase: What is the schism for the Russian Orthodox Church's important event?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q60995 wdt:P793 ?obj . ?obj wdt:P31 wd:Q41521 } 
Answer: Raskol, 2018 Moscow–Constantinople schism